Results 101 to 110 of about 523 (235)
Journal of Combinatorial Theory, Series A, 1985 If P is a finite poset with maximal elements \(X_ N\), then for certain posets it is possible to decompose \(L^ 2(X_ N)=\oplus^{N}_{n=0}Harm(n)| X_ N\), where \(L^ 2(X_ N)\) is the set of complex valued functions defined on \(X_ N\) acted on by the automorphism group G of P via the permutation representation induced from the stabilizer H of a fixed ...
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Foreword – Archaeometry special issue on chronological modeling
Archaeometry, Volume 67, Issue S1, Page 1-6, June 2025.Abstract It is well understood that archaeologists, by definition, always strive to assess time as precisely as possible. However, the lack of efficient temporal data interoperability limits our understanding of cross‐cultural historical evolution. This Special Issue of Archaeometry on chronological modelling features nine contributions which, while ...
Thomas Huet, Eythan Levy
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Regular Schur labeled skew shape posets and their 0-Hecke modules
Forum of Mathematics, SigmaAssuming Stanley’s P-partitions conjecture holds, the regular Schur labeled skew shape posets are precisely the finite posets P with underlying set $\{1, 2, \ldots , |P|\}$ such that the P-partition generating function is symmetric and the set of ...
Young-Hun Kim, So-Yeon Lee, Young-Tak Oh
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Interval number of special posets and random posets
Discrete Mathematics, 1995 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Douglas B. West, Tom Madej
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The small‐scale limit of magnitude and the one‐point property
Bulletin of the London Mathematical Society, Volume 57, Issue 6, Page 1841-1855, June 2025.Abstract The magnitude of a metric space is a real‐valued function whose parameter controls the scale of the metric. A metric space is said to have the one‐point property if its magnitude converges to 1 as the space is scaled down to a point. Not every finite metric space has the one‐point property: to date, exactly one example has been found of a ...
Emily Roff, Masahiko Yoshinaga
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AxiomsIn this article, a correspondence between some important classes of numerical semigroups and well-known families of bipartite graphs has been established.
Maria Mehtab +4 more
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Connectivity of the coset poset and the subgroup poset of a group [PDF]
Journal of Group Theory, 2005 28 ...
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Profinite rigidity for free‐by‐cyclic groups with centre
Journal of the London Mathematical Society, Volume 111, Issue 6, June 2025.Abstract A free‐by‐cyclic group FN⋊ϕZ$F_N\rtimes _\phi \mathbb {Z}$ has non‐trivial centre if and only if [ϕ]$[\phi]$ has finite order in Out(FN)${\rm {Out}}(F_N)$. We establish a profinite rigidity result for such groups: if Γ1$\Gamma _1$ is a free‐by‐cyclic group with non‐trivial centre and Γ2$\Gamma _2$ is a finitely generated free‐by‐cyclic group ...
Martin R. Bridson, Paweł Piwek
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Properties of products for flatness in the category of $S$-posets [PDF]
Categories and General Algebraic Structures with Applications, 2016 This paper is devoted to the study of products of classes of right $S$-posets possessing one of the flatness properties and preservation of such properties under products.
Roghaieh Khosravi, Mojtaba Sedaghatjoo
doaj
A systematic approach for invariants of C*-algebras
, 2023 We define a categorical framework in which we build a systematic construction that provides generic invariants for C*-algebras. The benefit is significant as we show that any invariant arising this way automatically enjoys nice properties such as ...
Cantier, Laurent
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